Hertel 91192955 Roughing End Mill 1-1/2 in 6 Flute Cobalt

Product Description

The HERTEL 91192955 is a single-end cobalt roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel and finished with a Titanium Nitride (TiN) coating, this tool delivers extended wear resistance and heat tolerance during heavy cutting. It features a 1-1/2 inch cutting diameter, 6 flutes with a coarse pitch, and a 3-inch length of cut. The right-hand cutting and right-hand flute direction suit conventional and climb milling setups. Machinists and tool-and-die professionals use this end mill on mills, machining centers, and CNC equipment where high stock removal rates are required.

This roughing end mill is suited for ferrous and non-ferrous materials in production and job-shop environments. The coarse-pitch flute geometry breaks chips aggressively, reducing heat buildup and tool deflection during deep passes. The 1-1/4 inch shank diameter fits standard ER and side-lock holders commonly found on vertical and horizontal milling machines. Its center-cutting capability allows direct plunge entry without a pre-drilled pilot hole, making it practical for pocketing and slotting operations.

Key Features

• M42 cobalt HSS construction for improved red hardness and wear resistance over standard M2 HSS
• Titanium Nitride (TiN) coating reduces friction and extends tool life in steel and cast iron
• 6-flute coarse-pitch geometry for high metal removal rates and effective chip evacuation
• Center-cutting design allows direct plunge milling without a pilot hole
• Right-hand cut and right-hand helix for use on standard spindle-direction machines
• 1-1/4 inch shank accommodates common milling chucks and collet holders

Compatibility

Designed as a direct-fit roughing end mill for standard milling machines and CNC machining centers accepting a 1-1/4 inch shank diameter.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before inserting or removing the end mill from its holder. Verify shank seating depth and holder runout with a dial indicator before cutting. Follow the machine tool manufacturer torque specifications when tightening collet nuts or set screws.